Aesculus Hippocastanum (horse chestnut) seed extract is a botanical rich in aescin (escin) and flavonoids, valued in skincare for its vasoprotective, anti-inflammatory, and venotonic properties. It is commonly used in formulations targeting redness, puffiness, and the appearance of dark circles or spider veins.
| Reported effect | How often | Notes |
|---|---|---|
Contact dermatitis / skin irritation | Uncommon | Localized redness or itching, more likely in sensitive skin or at higher concentrations. |
Allergic contact sensitization | Rare | Hypersensitivity reactions reported in predisposed individuals. |
Pruritus (itching) | Rare | Transient itching at application site. |
Phototoxic or photosensitivity reaction | Very rare | Limited reports; significance for topical cosmetic use is unclear. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.